238213647127 has 4 divisors (see below), whose sum is σ = 238264628400. Its totient is φ = 238162665856.

The previous prime is 238213647079. The next prime is 238213647131. The reversal of 238213647127 is 721746312832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238213647127 - 2³¹ = 236066163479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238213647157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25483627 + ... + 25492972.

It is an arithmetic number, because the mean of its divisors is an integer number (59566157100).

Almost surely, 2^238213647127 is an apocalyptic number.

238213647127 is a deficient number, since it is larger than the sum of its proper divisors (50981273).

238213647127 is an equidigital number, since it uses as much as digits as its factorization.

238213647127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50981272.

The product of its digits is 677376, while the sum is 46.

Adding to 238213647127 its reverse (721746312832), we get a palindrome (959959959959).

The spelling of 238213647127 in words is "two hundred thirty-eight billion, two hundred thirteen million, six hundred forty-seven thousand, one hundred twenty-seven".